Patellar subluxation is a common disorder that may cause patellofemoral pain syndrome. The efficiency of patellar taping in the treatment of patellofemoral pain syndrome has been reported good outcomes in most patients. However, some studies reported less effective in patients with higher body mass index, larger lateral patellofemoral angle, and smaller Q angle. The investigators hypothesized that femoral internal rotation is a negative factor to the patellar taping. The investigators enroll consecutive 100 patients with anterior knee pain and radiographic evidence of patellar subluxation. The investigators determine femoral rotation via physical examination. The visual analogue scale was evaluate to compare the result between the those with and without femoral internal rotation.

Consecutive 100 patients with anterior knee pain and compatible with inclusion criteria. Before treatment, an independent physiotherapist evaluates whether femoral internal rotation or not via physical therapy, and another studying nurse records the visual analog scale and measures Q angle. After evaluation, McConnell taping is applied to these patients. Two weeks later, outcomes are recorded including visual analog scale, satisfactory, and complication. The outcomes are compared between those with and without femoral internal rotation.

Eligibility

Ages Eligible for Study:

20 Years to 50 Years

Genders Eligible for Study:

Both

Accepts Healthy Volunteers:

Yes

Sampling Method:

Probability Sample

Study Population

100 patients

Criteria

Inclusion Criteria:

anterior knee pain

radiographic evidence of patellar subluxation

Exclusion Criteria:

history of patellar dislocation

osteoarthritis of ipsilateral knee

pregnancy

history of knee injury

BMI > 35

allergy to taping

Contacts and Locations

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To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01504100

Locations

Taiwan

Department of Orthopaedic Surgery, National Taiwan University Hospital